GB/T 40866-2021

Naming rule for dispatching of solar thermal power plant (English Version)

Standard No.

GB/T 40866-2021

Language

Chinese, Available in English version

Release Date

2021

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 40866-2021

Scope

This document stipulates the scheduling naming rules for solar thermal power stations, solar thermal power station access systems, generators, power station booster station equipment, power station electrical secondary equipment and systems, and thermal systems. This document is applicable to the newly built, expanded and renovated solar thermal power stations of tower type, trough type and linear Fresnel type using turbine generator units connected to the power system of 110kV and above. Other voltage levels and types of photothermal power stations shall be implemented accordingly.

Introduction

Interpretation of the core content of the standard

The standard establishes a full life cycle naming system covering tower, trough, and linear Fresnel CSP power stations, with a focus on standardizing:

• Division of dispatching jurisdiction (direct dispatching/licensed equipment)
• Five-level naming structure (voltage level + subject + region + type + sequence)
• Double numbering rule (switchgear numbering logic)

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Comparison of key technical requirements

System type	Naming elements	Numbering rule	Example
Generator	Power station name + serial number + machine	Sort from fixed end to expansion end	Unit 1 of 220kV Zhongkong Changxin Station
330kV circuit breaker	Four-digit code	The first two digits voltage level + serial number + position	3311 (Ⅰ mother side)
Heat storage system	Unit name + number + function	Process flow sequence	Unit 1A cold salt tank

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Implementation points analysis

Typical application scenarios

When a 330kV tower-type CSP power station adopts the 3/2 wiring method:

1. The switch in the second string should be numbered 3322
2. The isolating switch on the I mother side is named 33221 switch
3. The corresponding grounding switch is 332217 switch

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Background of standard evolution

This standard fills the gap in the naming of CSP dispatching. Its technical logic inherits from the GB/T33601 grid equipment naming specification, and makes three innovations based on the characteristics of CSP:

• Add naming rules for thermal system equipment (Appendix D/E)
• Refine the distinction between multiple technical routes (trough/tower/line)
• Introduce the double numbering visualization requirements (Appendix B/C)